component
BL8576CS8TR
Public Made by Adomby adom
BL Shanghai Belling Battery Management, ESOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownBL8576CS8TR
BL Shanghai Belling · Battery Management · ESOP-8
BL8576CS8TR from BL Shanghai Belling, in a ESOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | NC | unconnected | No internal connection. Leave floating or tie to GND as appropriate for the PCB layout. |
| 2 | PROG | bidirectional | Charge current program, monitor, and shutdown pin. Regulates to 1V in constant-current mode; charge current IBAT = (VPROG/RPROG)·1000, so a 1% resistor from PROG to GND sets IBAT (RPROG = 2k → ~500mA, 10k → ~100mA). Floating PROG raises it above the ~1.21V manual shutdown threshold via a 3μA pull-up, dropping ICC to ~25μA; internally clamped to ~2.4V (5mA absolute max). |
| 3 | GND | power_in | Device ground reference. Also the primary thermal path through the exposed pad / lead frame; use wide copper pours and vias to maximize allowed charge current. |
| 4 | VCC | power_in | Positive input supply, 4.25V to 6.0V (absolute max 6V). Bypass with at least 1μF to GND. Charging is inhibited by UVLO (~2.9V rising, 200mV hysteresis) and by the VCC-VBAT comparator (charger enters shutdown when VCC drops to within ~80mV of VBAT). |
| 5 | BAT | power_out | Charge current output to the Li-ion cell. Regulates to a 4.2V ±1% float voltage set by an internal precision divider; sources up to 1A of charge current. Continuous short-circuit tolerant; recharge cycle restarts when VBAT falls ~100mV below VFLOAT. |
| 6 | STDBY | output | Open-drain standby status output. Pulled low when the battery is fully charged (charge terminated); high-impedance otherwise. Requires an external pull-up to indicate the high state. |
| 7 | ~{CHRG} | output | Open-drain active-low charge status output. Pulled low (VOL ≤ 0.6V at 5mA) while a charge cycle is in progress; forced to high impedance when the BL8576 is in under-voltage lockout. Requires an external pull-up. |
| 8 | NC | unconnected | No internal connection. Leave floating or tie to GND as appropriate for the PCB layout. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | ESOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
BL8576CS8TR
CAD (KiCad official)
- Symbol:
BL8576CS8TR - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
bl8576cs8tr-etched.step/bl8576cs8tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl8576cs8tr.step/bl8576cs8tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (10 pp, sha256
ca045d756481b601, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).